Abstract: Ordered copolyestercarbonate resins having repeating units of the formula: ##STR1## wherein a portion of R.sup.1 is meta-phenylene and a portion of R.sub.1 is para-phenylene and R is independently an aromatic hydrocarbylene or inertly substituted aromatic hydrocarbylene, e.g., ##STR2## exhibit physical properties such as heat resistance, clarity and impact strength that are superior to the comparable properties of corresponding random copolymers. They exhibit melt processability that is superior to the melt processability of corresponding copolyestercarbonates wherein R.sup.1 is entirely para-phenylene. They exhibit heat resistance, notch sensitivity and low temperature impact resistance that are superior to comparable properties of corresponding copolyestercarbonates wherein R.sup.1 is entirely meta-phenylene. Such resins are useful for making transparent tough films and molded articles having high heat resistance.

Abstract: Partially etherified melamine-formaldehyde resins having a melamine:formaldehyde molar ratio of 1:(1.25 to 1) can be prepared by a condensation reaction under neutral or weakly alkaline conditions if the condensation reaction is carried out in the presence of a glycol monoether of the general formula IR(OCH.sub.2 CH.sub.2).sub.n OH (I)wherein R denotes alkyl having 1 to 4 C atoms and n denotes a number from 1 to 5. The partially etherified melamine-formaldehyde resins are suitable for the production of compression moulding compositions having a high flow and minimal processing shrinkage and after-shrinkage.

Abstract: Disclosed are compositions comprising blends of (a) a polyester having an inherent viscosity of about 0.4-1.5, (b) about 5 to about 35 weight %, based on the weight of the composition, of polyethylene having a melt index of about 0.1-15.0 and a density of about 0.910-0.965, and (c) about 0.25 to about 5 weight %, based on the weight of the composition, of poly(tetramethylene terephthalate)-co-2-butene-1,4-diol having an inherent viscosity of 0.9 to 1.5 grafted with a low density polyethylene. These compositions are especially useful as molding compositions because of their high impact strength.

Abstract: Thermoplastic compositions are described comprising neutralized acrylic copolymer rubber reinforced by thermoplastic crystalline polyester which compositions exhibit improved high temperature properties.

Abstract: Unsaturated polyester resin compositions that have a low shrinking property, and at the same time, an enough strength are provided. The compositions comprises (1) 30-70 parts by weight of an unsaturated polyester obtained by reacting terephthalic acid and/or isophthalic acid and one or more of unsaturated acids selected from the group consisting of maleic anhydride, maleic acid and fumaric acid, with a glycol, and having the unsaturation degree of 1.5-5.0 and the acid value of 18-40, (2) 70-30 parts by weight of .alpha.,.beta.-ethylenically unsaturated monomer, and (3) 5-30 parts by weight of a thermoplastic resin having the number average molecular weight of 5,000-500,000.

Abstract: An ink system, especially for use in retort environments, is disclosed. The ink system comprises a hard polyester resin, a soft polyester resin, a polyisocyanate catalyst and an appropriate pigment or pigments.

Abstract: A resin molding composition comprising a thermoplastic polymer, a monomer and an unsaturated polyester which is the reaction product of at least one polyol having at least two, but not more than four hydroxyl groups, the polyols comprising not less than about 48% of the weight of the reactants forming the polyester.

Abstract: Binders for foundry core sands and the like comprising furfuryl alcohol and an aromatic dialdehyde and optionally an aromatic alcohol.

Abstract: Binders for foundry core sand and other binder applications are produced from acetophenone.

Abstract: Ternary compositions are disclosed which comprise a mixture of a high molecular weight thermoplastic, aromatic polycarbonate, an acrylate copolymer, and thermoplastic polyester.

Abstract: Binders for foundry core sand and other binder applications are produced from the tars resulting from production of bisphenol A.

Abstract: A polymer blend capable of being molded to an impact resistant, substantially transparent or translucent article which comprises a vinyl halide homopolymer or copolymer, a conventional impact resistance enhancing polymer agent for polyvinyl halide wherein the monomer units consist essentially of methyl methacrylate, 1,3-butadiene and styrene residues and a thermoplastic block elastomer wherein the essential and predominant monomer units are the residue of a mono-alkenyl aromatic hydrocarbon and the residue of an alkadiene hydrocarbon. The thermoplastic elastomer is normally incompatible with the vinyl halide polymer or copolymer. The vinyl halide polymer or copolymer constitutes the major proportion of said blend and the block and methacrylate polymers together constitute a minor proportion of the composition. The weight ratio of block polymer to methacrylate polymer is about 1:5 to about 5:1.

Abstract: Coating compositions consist essentially of (a) ethylenically unsaturated monomers, (b) polyol-containing curable resins, (c) resins having ethylenic unsaturation and (d) solvent. The compositions are especially useful for the coating of products made from sheet molding compounds.

Abstract: A polybutylene terephthalate homopolymer or copolymer molding blend having good impact resistance is obtained by incorporating into the resin a selected organic compound and an ethylene polymer.

Abstract: This invention involves a curable liquid mixture comprising (a) a polyester of the following formula: ##STR1## wherein n has an average value between about 1.

Abstract: The green strength of SBR, SBR-polybutadiene, natural rubber or combinations thereof is improved by blending with an EPDM or EPM having a high degree of crystallinity.

Abstract: Novel molding compositions are disclosed which comprise a polyphenylene ether resin, an alkenyl aromatic resin and EPDM rubber.

Abstract: The present invention relates to a polyethylene terephthalate copolyester which crystallizes rapidly and a process to synthesize such a polymer. The polymer is produced by melt homogenizing pure polyethylene terephthalate segments (with minimum intrinsic viscosities above about 0.2 dl/g) with certain specified C.sub.4-10 diols, allowing the mixture to solidify and subjecting the solid product to a solid phase post-condensation reaction. The copolyester has a minimum intrinsic viscosity of 0.4 dl/g and crystallizes more rapidly than either pure polyethylene terephthalate of equivalent molecular weight or copolyester from the same acid and diol units wherein the pure polyethylene terephthalate segments are not significantly prepolymerized before reaction with the co-diols. In a preferred embodiment about 0.23 to 9.

Abstract: The holding power of hot melt adhesives is increased by the addition of poly(alpha-methylstyrene) and polyphenylene oxide.

Abstract: This invention relates to a novel product, fibrils of crosslinked polyester resin having a vesiculated structure, and to a process of making them.Vesiculated fibrils of crosslinked polyester resin of length 50 .mu.m-5 cm, diameter 1 .mu.m-2 mm and aspect ratio of 10-50 are prepared by pouring into water with stirring a selected solution in unsaturated monomer of a carboxylated unsaturated polyester resin of acid value 10-90 mg KOH per g., the water containing both a base having a pK.sub.b value of 8 maximum and a dispersion stabilizer, and initiating polymerization. The polyester solution is selected for suitability for fibril formation by means of a buoyancy test.The fibrils are useful in a number of applications, for example, as fillers for paints and putties, viscosity modifiers in liquids and replacements in some applications for fibrous mineral extenders such as asbestos.